Malicious PDF — malware analysis report

Static analysis result for SHA-256 0074db1256094839…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 14:17:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8fed34a981101a9cdc2f5c6374ba3319 SHA-1: d5c442b1964c0dcb66c4608994245b8d64344e84 SHA-256: 0074db1256094839234dc56a27f0f79dce4cd7bd1ca8b3722edcbc8e89b747b4
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gimoguvi.ru/aws?utm_term=how+do+i+know+which+adt+system+i+have PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476294/normal_5fd672b60238c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5fc60a808382c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470679/normal_5feb9f43ce1d9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386822/normal_5fc644aa353c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409248/normal_5fd343a88f577.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482863/normal_5fe6484216923.pdfIn PDF document text
    • https://cdn.sqhk.co/lomotutuwe/Shojdjh/jonetekiwiwevobum.pdfIn PDF document text
    • https://cdn.sqhk.co/vuluzazogur/p4UD2hh/13313355623.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/collins_international_primary_maths_workbook_2_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/carrier_primeline_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/ancient_cities_ita.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/5665085005.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/land_area_calculator_app.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/sda_church_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/casual_employment_agreement_nz_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/free_edit_baptism_certificate_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/jojenikanonovidob.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/tutorialspoint_javascript_form_validation.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE215 5332 bytes
SHA-256: 912ef7e57b15c18f10fa0e5afe15e8d35c7cd15c75a75bf149d8843adb132411
font_01_sfnt_off0000f430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF430 10360 bytes
SHA-256: 1aed92f24516529535dc362f1cec91bae079224df8bcb2c03ecb8fbb0fe79261